must send
Verbo irregular: send - sent- sent

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must send
you must send
she must send
we must send
you must send
they must send 	I must be sending
you must be sending
she must be sending
we must be sending
you must be sending
they must be sending	I must have sent
you must have sent
she must have sent
we must have sent
you must have sent
they must have sent	I must have been sending
you must have been sending
she must have been sending
we must have been sending
you must have been sending
they must have been sending	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't send
you mustn't send
she mustn't send
we mustn't send
you mustn't send
they mustn't send 	I mustn't be sending
you mustn't be sending
she mustn't be sending
we mustn't be sending
you mustn't be sending
they mustn't be sending	I mustn't have sent
you mustn't have sent
she mustn't have sent
we mustn't have sent
you mustn't have sent
they mustn't have sent	I mustn't have been sending
you mustn't have been sending
she mustn't have been sending
we mustn't have been sending
you mustn't have been sending
they mustn't have been sending	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I send?
must you send?
must she send?
must we send?
must you send?
must they send? 	must I be sending?
must you be sending?
must she be sending?
must we be sending?
must you be sending?
must they be sending? 	must I have sent?
must you have sent?
must she have sent?
must we have sent?
must you have sent?
must they have sent? 	must I have been sending?
must you have been sending?
must she have been sending?
must we have been sending?
must you have been sending?
must they have been sending? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I send?
mustn't you send?
mustn't she send?
mustn't we send?
mustn't you send?
mustn't they send? 	mustn't I be sending?
mustn't you be sending?
mustn't she be sending?
mustn't we be sending?
mustn't you be sending?
mustn't they be sending? 	mustn't I have sent?
mustn't you have sent?
mustn't she have sent?
mustn't we have sent?
mustn't you have sent?
mustn't they have sent? 	mustn't I have been sending?
mustn't you have been sending?
mustn't she have been sending?
mustn't we have been sending?
mustn't you have been sending?
mustn't they have been sending?